Specifications

20
MULTI-FUNCTION LINE DRIVER
Once you have configured each Multi-Function Line Driver and connected
the cables, you are ready to operate the units. They should operate
transparently, as if there were a standard cable connection between the two
destination devices.
The MFLD has no “ON/OFF” switch, because it draws its operating power
from the data and control signals it receives. For this reason, the MFLD will
power up as soon as it is connected to a powered device, and it will power
down as soon as the device is powered down or the MFLD is disconnected
from that device.
The rest of this chapter describes the MFLD’s top-panel LEDs and switches
and how to perform diagnostic testing.
5.1 Status LEDs
The Multi-Function Line Driver has two top-panel status LEDs (shown in
Figure 5-1 below) that light during testing.
Figure 5-1. The MFLD’s top panel.
5. Operation and Diagnostics
BERT
511/E RDL
NORMAL
511 LAL
LOOP